WiFi thermostats and door entry systems

[Jeff Piscioniere]

I'm closing on a vacation rental property approx 12 hours from my home and I'm interested in installing both a thermostat and keyless entry lock system which I can control remotely.  What are the recommended devices to use?  I was looking in Home Depot today and there seems to be a good selection. How exactly do they work?  Do you need to have wireless routers in the rental to work properly?  I'm specifically interested in a lock system that will allow me multiple entry codes and allow me to remotely monitor who and how often people are entering the home. 

Thank you in advance!

Jeff